Document. Document! DOCUMENT!!

[360Youth]

We are dealing with a floor heater cable issue right now. We installed the cable on a bathroom sub-floor in September (new home) so the tile guy could do his pour. I tested the system before we left and went my way. He called me the other day worried over a few spots where the cable had floated to the surface and asked that we do a check before he lays his tiles. Now the built-in GFCI on the thermostat trips immediately. After talking to factory and dealer reps the conclusion is there is a damaged cable. My mistake is not properly documenting that it worked. GC is not questioning that I tested before I left, but a smart man would have made sure before leaving and turning over to someone else. Any number things could have happened in the day or two between install and pour. If you are not in the habbit of documenting such things, please do so. I will try and be better about it, that is for sure.

[480sparky]

Did you install a Loudmouth (http://www.suntouch.com/loudmouth.html) on the wiring before you left the original install?

[C3PO]

Did you install a Loudmouth (http://www.suntouch.com/loudmouth.html) on the wiring before you left the original install?

That is a good idea, I have never heard of those.

[C3PO]

Did you not get the floor heat inspected before it was covered?

[480sparky]

That is a good idea, I have never heard of those.

Just make sure you get them back. After the tile is set, they tend to grow wings and fly the coop.

[celtic]

Just make sure you get them back. After the tile is set, they tend to grow wings and fly the coop.

Cheap insurance to add it into the price of the job.

[Dennis Alwon]

That is a good idea, I have never heard of those.

Most radiant floor system that I have bought come with the loudmouth or a version similar to it. You leave it install at all times during the floor process. If it beep you got problems.

[480sparky]

Cheap insurance to add it into the price of the job.

I just rent them to the tilesetters for 10 bucks a job. After two jobs, they're paid for!

[Podagrower]

I was thinking of an alarm when I started reading. I don't install too much radiant heat, but the MRI rooms I have done have a similar alarm to make sure you don't ground the RFI shield.

[jeremysterling]

Another documenting tip I picked up is to install pull strings in underground conduits in slabs or fill, take pictures, and demonstrate to the GC that the string moves freely. Could be your only recourse when someone else drills or digs up the conduit.

[mdshunk]

Another documenting tip I picked up is to install pull strings in underground conduits in slabs or fill, take pictures, and demonstrate to the GC that the string moves freely. Could be your only recourse when someone else drills or digs up the conduit.
If I wanted to demonstrate to a GC that every pull string I install moves freely, he's going to get mighty irritated with me.

[ivsenroute]

Just installed one and while the GC was there I did the required resistance checks then required megger check and showed him the results which I documented on the paperwork provided by the manufacturer.

I explained that I was done for now and how careful everyone needed to be. This way there were no questions later.

Not a job I want to have to share in the expense of redoing

[cschmid]

I am curious why your cable floated..not enough fasteners to hold it to floor..always tale pictures and provide a copy of the documentation and have inspection form as well..then the GC will take more appropriate measure to insure it is not broken and better tracking measures of subs working on the floor..because it is their expense then..

[jmsbrush]

Did you install a Loudmouth (http://www.suntouch.com/loudmouth.html) on the wiring before you left the original install?

That is the coolest thing I think I have seen all day.

[360Youth]

I was not aware of the Loudmouth type device umtil afterwards. Hindsight is 20/15 in this case. Nothing has come back on us so far, although we are the ones pursuing the repair. Hopefully it will resolve easily. The bright side is we will get to play with a thermal imager for the first time. :cool:Maybe the cable repair will go quickly and have time to really play before having to return the imager. :)

[Fulthrotl]

That is a good idea, I have never heard of those.

they work well. they seem to disappear along with the tile setter,
so i just take the price of them, charge it to the job, and if i get them
back, more the better. i've yet to get one back.

most mat's have a factory label showing the impedance. i check it
before i lay it, and megger each lead to the ground with the megger
set to 100v. write the readings down in my ongoing note book of
all the stuff i need to remember.

i do the same thing after i lay the mat, and then hook up the monitor.
it supervises the circuit.... if the circuit goes either to dead short,
or open, it squeals.

[aftershock]

Did you install a Loudmouth (http://www.suntouch.com/loudmouth.html) on the wiring before you left the original install?

I have only done 3 floor floor heat systems. I would install a temp light socket and switch at the switch box and instruct the tile guy to keep any eye on the bulb. If the bulb goes out, something either happened to the cable, or the bulb blew.

[iwire]

I have only done 3 floor floor heat systems. I would install a temp light socket and switch at the switch box and instruct the tile guy to keep any eye on the bulb. If the bulb goes out, something either happened to the cable, or the bulb blew.


So your exposing the tile guys to a 120 VAC shock?

[Fulthrotl]

So your exposing the tile guys to a 120 VAC shock?

if you give them a short sharp shock, they don't do it again.

[iwire]

if you give them a short sharp shock, they don't do it again.

If your joking, don't think the thought has not crossed all our minds. :D

If your not joking ..... I think you need to move into the 21st century.

[Greg Swartz]

Did you install a Loudmouth (http://www.suntouch.com/loudmouth.html) on the wiring before you left the original install?

A couple of the contractors I work with have their own and place them on the wires...

Those are the GOOD contractors... the ones that ACTUALLY CARE about what they are doing.

[480sparky]

A couple of the contractors I work with have their own and place them on the wires...

Those are the GOOD contractors... the ones that ACTUALLY CARE about what they are doing.

Can you run them through the Xerox machine and send me some copies? :D

[aftershock]

So your exposing the tile guys to a 120 VAC shock?

Hmm. I did not consider that. I have a GFCI protecting it, but I guess that wont keep an initial shock from happening.

I'll come up with something different next time.

[celtic]

I'll come up with something different next time.

How about a battery and bell?